Concrete admixtures, specified by mix requirement and placement need
Request admixtures by naming the concrete mix objective, placement conditions and the approved requirement that governs selection. This lets suppliers quote the exact product, dosage basis and unit quantity against the same scope instead of a vague product type.
Start with the right material groups.
Water-reducing and workability admixtures
State the target workability requirement and the mix reference the admixture must support. Ask the supplier to identify the exact product and dosage basis for that mix.
Set-control admixtures
For acceleration or retardation needs, provide the placement schedule, temperature exposure and project requirement. Request the proposed product and any companion curing material separately.
Air-entraining and special performance admixtures
Where project conditions call for freeze-thaw or other specific performance, list the exposure objective. Ask suppliers to explain product identity, quantity basis and declared limitations.
A material price is only part of the package.
One schedule, clearly separated scopes. This is a request outline, not an installation drawing.
Included materials
Admixture supply matched to named concrete mix references and the approved project requirement.
Connections & interfaces
Product identity, packaging, delivery quantity and technical documents for each proposed admixture.
Confirm separately
Separately confirm site dosing equipment, storage, handling and disposal responsibilities.
Six details that make offers clearer.
- Exact product designation and required performance
- Provide the approved mix reference and the performance objective the admixture must support.
- Concrete mix reference
- Name the mix design or pour reference the admixture will be used in, including aggregate and cement type known.
- Dosage basis and packaging
- Request the dosage basis and unit from the product data, stating whether it refers to cement or total binder mass. Ask for mix-specific trial and approval information alongside pack size and quantities.
- Placement and exposure conditions
- Share pour schedule, temperature range and exposure the admixture must work within from the project.
- Compatibility with other admixtures
- Request confirmation of compatibility with any other specified admixture or mix component in the same batch.
- Product data and delivery evidence
- Request current technical and safety data for the exact proposed product and any declared exceptions.
| Item & description | Quantity |
|---|---|
| CA-01Water-reducing admixture for the project-approved slab mix; dosage basis and pack size documented in the proposal. | 800 liters |
| CA-02Set-retarding admixture for hot-weather placement of approved column mix; delivery schedule attached separately. | 400 liters |
Example quantities only; no live prices or supplier offers. Use your project schedule for final values and ask suppliers to list deviations.
Three checks before you decide.
Product identity against mix reference
Confirm each offered admixture matches the named mix reference and the project requirement, not just a similar type.
Dosage basis and concrete volume
Compare recommended dosage range and the concrete volume it covers so unit price reflects the same quantity basis.
Compatibility and handling limits
Review declared compatibility, storage temperature limits and handling restrictions before the offer is accepted.
Details worth clarifying early.
How do I compare two admixtures with different recommended dosage rates?
Ask each supplier to express price against the concrete volume and the proposed dosage basis. Do not compare product cost per liter alone without that reference.
Which mix details should accompany the admixture enquiry?
Include the approved mix reference, concrete volume, placement timing and exposure conditions so the supplier can identify a suitable product and dosage.
Turn your material schedule into a request.
Create a Matravo account to prepare your request. For account or sourcing-flow questions, visit support.